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///M3 Forum The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

Loos like a badass mod, but:
1) They didn't even take the bumper off to work on it? ....
2) The cutouts look subpar with the wavy cuts:

Great idea, but not so great execution IMO!

THANK YOU!! I thought I was the only one that noticed that . Also, I'll kind of disagree on the "great idea" part. Don't really see the point since the air doesn't flow that way... unless OP drives his car in reverse .

THANK YOU!! I thought I was the only one that noticed that . Also, I'll kind of disagree on the "great idea" part. Don't really see the point since the air doesn't flow that way... unless OP drives his car in reverse .

There isn't a reason to change side skirts or a csl diffuser or going with shadowline trim...it's all about looks and what makes your car what you want it to be. I love all the haters with this bumper. OP mad props, definitely has been one of my favorite bumpers out there. I dig the GTR bumper and fenders!

THANK YOU!! I thought I was the only one that noticed that . Also, I'll kind of disagree on the "great idea" part. Don't really see the point since the air doesn't flow that way... unless OP drives his car in reverse .

So every car that comes with vents in their rear bumpers, side skirts, fenders, and front bumpers are pointless?

There isn't a reason to change side skirts or a csl diffuser or going with shadowline trim...it's all about looks and what makes your car what you want it to be. I love all the haters with this bumper. OP mad props, definitely has been one of my favorite bumpers out there. I dig the GTR bumper and fenders!

Bumper looks great. Only things I would change is to not have a two-tone hood (except for exposed vents), and to paint the portion of the rear diffuser that most people do. But that's my opinion, it still looks good as it stands.

THANK YOU!! I thought I was the only one that noticed that . Also, I'll kind of disagree on the "great idea" part. Don't really see the point since the air doesn't flow that way... unless OP drives his car in reverse .

I wouldn't jump to conclusions like that. I'm sure on a legit race car it does have some effect with feeding a rear wing or diffuser. There will be air flow through that vent but whether it's actually beneficial would have to be determined in a wind tunnel.

BUT what is going on below this vent? I figured it was a reflection in the picture above this one in the OP but this just looks like bad body work or something

and you can definitely see the waves in the up close picture of the left vent. Its very hard to do that kind of work because there is only so much you can do so I wouldn't be

I wouldn't jump to conclusions like that. I'm sure on a legit race car it does have some effect with feeding a rear wing or diffuser. There will be air flow through that vent but whether it's actually beneficial would have to be determined in a wind tunnel.

BUT what is going on below this vent? I figured it was a reflection in the picture above this one in the OP but this just looks like bad body work or something

and you can definitely see the waves in the up close picture of the left vent. Its very hard to do that kind of work because there is only so much you can do so I wouldn't be

My car is VERY dirty in this picture. The bumper is like that due to brake dust, road grime, and exhaust fumes, etc...

Also, this is an iPhone picture, so the "Wave" isn't there in REAL LIFE. If there was a legit wave, I would have had it re-done.

That blob or whatever keeps showing up! I bet its because the paint is real metallic and they might have ran the base then had to sand it so it flip flops weird.

Even my stock bumper WITHOUT the vents would turn out like that. I think it's because of the Tire Shine I use. When it mixes with brake dust, tire grime, or rain, it turns out like that if I don't wash my car for like 2-3 weeks.